Crains Detroit: Barry M. Goldwater Jr. has a problem with fellow conservatives and utility executives in Michigan. Goldwater Jr., 77, told me in an interview this week that he is upset with Michigan Republican legislators who he says want to discard the states successful net metering law that has helped to create jobs and a booming yet fledgling industry for rooftop solar projects on residential homes, churches and small businesses. The son of one of the icons of the Republican Party five-term Sen. Barry Goldwater...